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dc.contributor.authorDiez, M.
dc.contributor.authorCabreira, A.
dc.contributor.authorMadirolas, A.
dc.contributor.authorLovrich, G.
dc.date.accessioned2020-06-06T18:59:56Z
dc.date.available2020-06-06T18:59:56Z
dc.date.issued2016
dc.identifier.doihttps://doi.org/10.1016/j.seares.2016.04.004
dc.identifier.urihttp://hdl.handle.net/1834/17118
dc.description.abstractSquat lobsters are highly diversified and widespread decapods, of which only three species form pelagic swarms. Here we infer the expansion of Munida gregaria populations in the Beagle Channel and the Argentine Patagonian Shelf by means of acoustic surveys of pelagic swarms. We also describe the habitat characteristics in which these swarms occur. Acoustic data was collected during three multidisciplinary scientific cruises on board of the R/V Puerto Deseado during 2009, 2012 and 2014. Despite differences in the environmental conditions between the two surveyed areas, between 2009 and 2014 pelagic swarms increased their occurrence and abundance both in the Beagle Channel and on the Argentine Patagonian Shelf. Towards the end of the studied period, pelagic swarms of M. gregaria occurred in new locations, supporting the notion of a population expansion. Within the Beagle Channel swarm expansions were more marked than on the Patagonian Shelf. We here postulate that M. gregaria expansions occur in association with productive areas of the Argentine continental shelf, such as frontal zones, favoured by the squat lobster phenotypic plasticity that permit to exploit resources in both the neritic and benthic environments. At a regional scale on the Patagonian Shelf, three main groups of pelagic swarms of M. gregaria were clearly associated to respective frontal zones. The information presented here is necessary to understand fluctuations in both distribution and abundance patterns of a key species on the Argentine continental shelf. These fluctuations could be direct or indirect indicators of changes in the ecosystem.en_US
dc.language.isoenen_US
dc.titleHydroacoustical evidence of the expansion of pelagic swarms of Munida gregaria (Decapoda, Munididae) in the Beagle Channel and the Argentine Patagonian Shelf, and its relationship with habitat featuresen_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.titleJournal of Sea Researchen_US
dc.bibliographicCitation.volume114en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.1-12en_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:47:50Z


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